====== Remote upgrade of a RedHat 9 server into Fedora Core X ======

Where X = 6 and arch = i386.

I am not really a fan of RedHat like distros, but I had once this pretty old server running RedHat 9, which was unable to have any more updates when Fedora Legacy decided to stop it after a while of great job.

So this is my quick HOWTO based on notes from this website : [[http://www.brandonhutchinson.com/Upgrading_Red_Hat_Linux_with_yum.html]] with a few add-ons.

===== Step 1 : RedHat 9 to Fedora core 1 =====

  * Download and install the Fedora version of yum:

  rpm -Uvh http://download.fedora.redhat.com/pub/fedora/linux/core/1/i386/os/Fedora/RPMS/yum-2.0.4-2.noarch.rpm

  * Download and install the fedora-release package.

  rpm -Uvh http://download.fedora.redhat.com/pub/fedora/linux/core/1/i386/os/Fedora/RPMS/fedora-release-1-3.i386.rpm

  * Modify /etc/yum.conf
<code>
[main]
cachedir=/var/cache/yum
debuglevel=2
logfile=/var/log/yum.log
pkgpolicy=newest
distroverpkg=fedora-release
tolerant=1
exactarch=1

[base]
name=Fedora Core $releasever - $basearch - Base
baseurl=http://redhat.download.fedoraproject.org/pub/fedora/linux/core/$releasever/i386/os
</code>

  * Upgrade to Fedora Core 1.

  yum -y upgrade

  * Check /etc/lilo.conf to have 2.4.22-1.2115.nptl by default.

  * reboot

===== Step 2 : Fedora core 1 to Fedora core 2 =====

  * Check all your kernels and remove unused ones

  rpm -q kernel kernel-smp
  rpm -e ...

  * Clean up a little caches

  yum clean all

  * Download and install the new Fedora version and yum version :

  rpm -Uvh http://download.fedora.redhat.com/pub/fedora/linux/core/2/i386/os/Fedora/RPMS/yum-2.0.7-1.1.noarch.rpm http://download.fedora.redhat.com/pub/fedora/linux/core/2/i386/os/Fedora/RPMS/fedora-release-2-4.i386.rpm

  * Remove apt if it is still here

  rpm -e apt

  * Partial pre-upgrade

  yum upgrade yum python rpm-python rpm glibc glibc-common redhat-config-\* XFree86\* libxml2\*

  * Upgrade all

  yum -y upgrade

  * Check grub or lilo to have the FC2 kernel by default

  * Reboot

===== Step 3 : Fedora core 2 to Fedora core 3 =====

  * remove up2date

  rpm -e up2date

  * Retrieve the Fedora Project gpg key

  wget http://fedora.redhat.com/about/security/4F2A6FD2.txt
  rpm --import 4F2A6FD2.txt

  * Retrieve yum and fedora-release, and install them

  wget http://fedora.glorb.com/core/3/i386/os/Fedora/RPMS/fedora-release-3-8.i386.rpm
  wget http://fedora.glorb.com/core/3/i386/os/Fedora/RPMS/yum-2.1.11-3.noarch.rpm
  rpm -Uvh fedora-release-3-8.i386.rpm yum-2.1.11-3.noarch.rpm 
  rpm -Uvh --force fedora-release-3-8.i386.rpm yum-2.1.11-3.noarch.rpm

  * Remove older kernels (2.4.x from RH9, FC1...)
  
  rpm -q kernel kernel-smp
  rpm -e kernel-2.4...

  * Upgrade all packages

  yum -y upgrade

  * Check grub or lilo to have the FC3 kernel by default

  * Reboot

===== Step 4 : Fedora core 3 to Fedora core 4 =====

  * Download and install the new Fedora version :

  rpm -Uvh http://download.fedora.redhat.com/pub/fedora/linux/core/4/i386/os/Fedora/RPMS/fedora-release-4-2.noarch.rpm

  * Upgrade mkinitrd first :

  yum -y upgrade mkinitrd

  * Then upgrade kernel :

  yum -y update kernel

  * disable Selinux in /etc/sysconfig/selinux

  SELINUX=disabled

  * Check grub or lilo to have the FC4 kernel by default

  * Reboot

  * Remove older kernels (from FC3, FC2 or prior)
  
  rpm -q kernel kernel-smp
  rpm -e kernel...

  * Upgrade all

  yum -y upgrade

===== Step 5 : Fedora Core 4 to Fedora core 5 =====

  * Download and install the new Fedora version :

  rpm -Uvh http://download.fedora.redhat.com/pub/fedora/linux/core/5/i386/os/Fedora/RPMS/fedora-release-5-5.noarch.rpm

  * yum -y update

===== Step 6 : Fedora Core 5 to Fedora core 6 =====

  * Download and install the new Fedora version :

  rpm -Uhv http://download.fedora.redhat.com/pub/fedora/linux/core/6/i386/os/Fedora/RPMS/fedora-release-6-4.noarch.rpm http://download.fedora.redhat.com/pub/fedora/linux/core/6/i386/os/Fedora/RPMS/fedora-release-notes-6-3.noarch.rpm

  * upgrade all

  yum -y update

  * Check grub or lilo to have the FC6 kernel by default

  * Reboot

===== Step 7 : Fedora Core 6 to Fedora core 7 =====

  * Download and install the new Fedora version & release notes :

  rpm -Uvh http://mirrors.ircam.fr/pub/fedora/linux/releases/7/Fedora/i386/os/Fedora/fedora-release-notes-7.0.0-1.noarch.rpm
  rpm -Uvh http://mirrors.ircam.fr/pub/fedora/linux/releases/7/Fedora/i386/os/Fedora/fedora-release-7-3.noarch.rpm

  * upgrade all

  yum -y update

  * Check grub or lilo to have the FC7 kernel by default
  * double check disk names (sda vs hda) et do a grub-install --recheck if necessary

  * Reboot

===== Step 8 : Fedora Core 7 to Fedora core 8 =====

  * Download and install the new Fedora version :

  rpm -Uvh http://mirrors.ircam.fr/pub/fedora/linux/releases/8/Fedora/i386/os/Packages/fedora-release-8-3.noarch.rpm

  * upgrade all

  yum -y update

  * Check grub or lilo to have the FC8 kernel by default

  * Reboot